CN115574196A - Heat insulation structure and heat insulation cladding process of steam heat insulation pipe - Google Patents
Heat insulation structure and heat insulation cladding process of steam heat insulation pipe Download PDFInfo
- Publication number
- CN115574196A CN115574196A CN202211190936.6A CN202211190936A CN115574196A CN 115574196 A CN115574196 A CN 115574196A CN 202211190936 A CN202211190936 A CN 202211190936A CN 115574196 A CN115574196 A CN 115574196A
- Authority
- CN
- China
- Prior art keywords
- heat
- cotton
- preservation cotton
- closed section
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a steam inner pipe, which is coated with a heat-insulating cotton layer; the heat insulation cotton layer comprises cylindrical inner-layer heat insulation cotton and outer-layer heat insulation cotton; the steam-insulated heat-insulated cotton heat-insulated structure is characterized by further comprising a heat-insulated cotton framework which is coaxial with the steam inner pipe, wherein the inner-layer heat-insulated cotton and the outer-layer heat-insulated cotton are formed by bending/bending a complete rectangular piece of heat-insulated cotton; one heat preservation cotton is crooked into double-deck hollow structure, stops the problem that the heat conduction area between solid and the solid enlarges on the basis of the cladding that the heat preservation cotton is compacted, plays the thermal heat preservation effect of pinning.
Description
Technical Field
The invention belongs to the field of heat preservation pipes.
Background
The heat insulation cotton outside the steam inner pipe is generally wrapped by adopting a plurality of layers of heat insulation cotton, so that the heat insulation effect is achieved;
if the two adjacent soundproof cotton are coated too loosely, a gap exists between the two adjacent layers of heat insulation cotton, and further heat is lost through the gap;
if two adjacent soundproof cotton cladding are too compact, because the laminating is too inseparable between the adjacent two-layer heat preservation cotton leads to the fact the contact surface each other big to heat conduction rate reinforcing and then also cause the heat to scatter and disappear easily between the time two-layer heat preservation cotton.
There is great difference in temperature under the work of steam inner tube and the unoperated state, because expend with heat and contract with cold's problem, conventional cladding mode, the intermediate form of lax and compacting between two adjacent soundproof cotton hardly has the continuity.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a heat insulation structure and a heat insulation coating process of a steam heat insulation pipe.
The technical scheme is as follows: in order to achieve the purpose, the heat insulation structure of the steam heat insulation pipe comprises a steam inner pipe, wherein a heat insulation cotton layer is coated outside the steam inner pipe; the heat insulation cotton layer comprises cylindrical inner-layer heat insulation cotton and outer-layer heat insulation cotton;
still include with the cotton skeleton of heat preservation of steam inner tube axiality, inlayer heat preservation cotton and outer heat preservation cotton are buckled/crooked by a complete rectangle heat preservation cotton and are formed, and a rectangle heat preservation cotton is crooked/is buckled into inlayer heat preservation cotton and outer heat preservation cotton after, and the cotton skeleton of heat preservation is sandwiched between inlayer heat preservation cotton and outer heat preservation cotton, the cotton skeleton of heat preservation is with the space division between inlayer heat preservation cotton and the outer heat preservation cotton into a plurality of independent thermal-insulated empty storehouses.
Further, the inner-layer heat insulation cotton comprises a layer of cylindrical inner-ring heat insulation cotton with an open ring at the lower end, wherein the layer of cylindrical inner-ring heat insulation cotton is tightly coated outside the steam inner pipe, and the counterclockwise end and the clockwise end of the inner-ring heat insulation cotton with the open ring are respectively bent downwards to form a first heat insulation cotton closed section and a second heat insulation cotton closed section; the steam pipe also comprises a first holding strip and a second holding strip which are parallel to the axis of the steam inner pipe; first holding strip and the parallel clamp of second holding strip are in cotton closed section of first heat preservation and the cotton closed section both sides of second heat preservation, make and closely extrude between cotton closed section of first heat preservation and the cotton closed section of second heat preservation, and the cotton closed section of first heat preservation and the cotton closed section of second heat preservation of mutual extrusion make the inner circle heat preservation cotton of open-loop become the closed loop, and have the trend of contracting inwards.
Furthermore, the heat preservation cotton framework comprises a plurality of annular dividing pieces which are coaxially and equidistantly distributed, the lower ends of the annular dividing pieces are provided with openings, inner rings of the annular dividing pieces are coaxially sleeved outside the inner ring heat preservation cotton, and the anticlockwise ends and clockwise ends of the annular dividing pieces are respectively connected with the first clamping strips and the second clamping strips in a welding mode.
Further, the outer-layer heat insulation cotton consists of a left semi-arc-shaped heat insulation cotton and a right semi-arc-shaped heat insulation cotton which are coaxial; the inner walls of the left semicircular arc-shaped heat preservation cotton and the right semicircular arc-shaped heat preservation cotton are attached to the outer ring outline of each circular ring-shaped cutting piece, and an independent heat insulation empty bin is formed between any two adjacent circular ring-shaped cutting pieces;
the reverse-time needle end of the left semicircular arc-shaped heat preservation cotton is connected with the lower end of the first heat preservation cotton closed section into a whole, and the clockwise needle end of the right semicircular arc-shaped heat preservation cotton is connected with the lower end of the second heat preservation cotton closed section into a whole;
the clockwise needle end of the left semicircular arc-shaped heat preservation cotton and the counterclockwise needle end of the right semicircular arc-shaped heat preservation cotton are integrally bent upwards to form a third heat preservation cotton closed section and a fourth heat preservation cotton closed section respectively.
The third holding strip and the fourth holding strip are parallel to the axis of the steam inner pipe; third holding strip and fourth holding strip parallel clamp are in third cotton closed section of heat preservation and the cotton closed section both sides of fourth heat preservation, make closely the extrusion between third heat preservation cotton closed section and the cotton closed section of fourth heat preservation, and the cotton closed section of third heat preservation and the cotton closed section of fourth heat preservation and the cotton closed section of first heat preservation and the cotton closed section of second heat preservation that extrudes each other make left semicircle arcuation heat preservation cotton and the cotton amalgamation of right semicircle arcuation heat preservation become a closed loop tubular structure, and have the trend of adduction.
Furthermore, the left semicircular arc-shaped heat preservation cotton, the right semicircular arc-shaped heat preservation cotton, the first heat preservation cotton closed section, the second heat preservation cotton closed section, the inner ring heat preservation cotton, the third heat preservation cotton closed section and the fourth heat preservation cotton closed section are formed by bending/bending the rectangular heat preservation cotton.
Further, the heat insulation cotton coating process of the heat insulation structure of the steam heat insulation pipe is characterized in that:
clamping and fixing the steam inner pipe in a horizontal posture;
step two, enabling the middle part of the rectangular heat insulation cotton to be tangent to the top of the steam inner pipe;
step three, enabling the first holding strip and the second holding strip to contact the upper surface of the middle part of the rectangular heat-preservation cotton;
the first holding strip and the second holding strip respectively move anticlockwise and clockwise along the outline path of the steam inner pipe, so that the middle part of the rectangular heat-insulation cotton is in an arc shape under the motion constraint of the first holding strip and the second holding strip and is gradually attached to the outer wall of the steam inner pipe, and the inner-ring heat-insulation cotton is gradually formed; the parts of the two sides of the heat preservation cotton which are not bent/bent are marked as a left wing and a right wing;
when a complete inner ring insulation cotton is formed, a first insulation cotton closed section and a second insulation cotton closed section which are formed by an anticlockwise end and a clockwise end of the inner ring insulation cotton and bent downwards are clamped between a first clamping strip and a second clamping strip;
step five, a heat insulation cotton framework formed by the first holding strip, the second holding strip and the circular ring-shaped dividing pieces is integrally sleeved outside the formed inner ring heat insulation cotton coaxially;
the third holding strip and the fourth holding strip are respectively in parallel contact with the lower side surface of the right end of the left wing and the lower side surface of the left end of the right wing;
step six, the third holding strip and the fourth holding strip respectively move clockwise and anticlockwise along the outline path of the heat insulation cotton framework, the left wing and the right wing gradually become circular arcs under the constraint of circular arc motion of the third holding strip and the fourth holding strip and gradually attach to the periphery of the heat insulation cotton framework, and the left wing and the right wing gradually form left semicircular arc-shaped heat insulation cotton and right semicircular arc-shaped heat insulation cotton;
when the left semicircular arc-shaped heat preservation cotton and the right semicircular arc-shaped heat preservation cotton are integrally formed, a third heat preservation cotton closed section and a fourth heat preservation cotton closed section which are bent upwards and formed by the clockwise needle end of the left semicircular arc-shaped heat preservation cotton and the counterclockwise needle end of the right semicircular arc-shaped heat preservation cotton are clamped between the third clamping strip and the fourth clamping strip.
Further, the device comprises a left heat-preservation cotton clamping device and a right heat-preservation cotton clamping device, wherein the left heat-preservation cotton clamping device and the right heat-preservation cotton clamping device can clamp left and right contour edges of rectangular heat-preservation cotton respectively; the driving device can respectively drive the left heat-preservation cotton clamping device and the right heat-preservation cotton clamping device to move in any X-Y direction.
Furthermore, the heat-insulating cotton cladding process device of the steam heat-insulating pipe also comprises a left holding strip clamping device and a right holding strip clamping device, wherein the driving device can respectively drive the left holding strip clamping device and the right holding strip clamping device to move in any XY directions, and the left holding strip clamping device and the right holding strip clamping device respectively clamp the first holding strip and the second holding strip; the first holding strip c and the second holding strip are respectively synchronously displaced along with the left holding strip clamping device and the right holding strip clamping device; after the first clamping strip and the second clamping strip are released by the left clamping strip clamping device and the right clamping strip clamping device, the third clamping strip and the fourth clamping strip can be clamped respectively.
Has the advantages that: the inner-layer heat-insulation cotton and the outer-layer heat-insulation cotton are formed by bending/bending a piece of complete rectangular heat-insulation cotton, and the inner-layer heat-insulation cotton and the outer-layer heat-insulation cotton have inward contraction trends due to a continuous structure formed by bending/bending, so that a compact wrapping effect is achieved, meanwhile, a plurality of independent cavities are formed between the inner-layer heat-insulation cotton and the outer-layer heat-insulation cotton, heat conduction between solids is effectively isolated, and a heat insulation effect of locking heat is achieved on the basis of compact wrapping of the heat-insulation cotton; in the process aspect, the rectangular heat preservation cotton is bent/bent into continuous left semicircular arc-shaped heat preservation cotton, right semicircular arc-shaped heat preservation cotton, a first heat preservation cotton closed section, a second heat preservation cotton closed section, inner ring heat preservation cotton, a third heat preservation cotton closed section and a fourth heat preservation cotton closed section in a mode of displacing circular arc paths of the first clamping strip, the second clamping strip and the third clamping strip.
Drawings
FIG. 1 is a schematic view of the complete structure of a steam insulation pipe;
FIG. 2 is a schematic structural view of the steam insulation pipe with the outer pipe hidden;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic view of a left clip strip clamping device and a right clip strip clamping device respectively clamping a first clip strip and a second clip strip;
FIG. 5 is a schematic view of the plurality of circular ring-shaped dividing sheets, the first holding strip and the second holding strip when they are separated;
FIG. 6 is a schematic diagram of a heat-insulating cotton framework formed by integrally welding a plurality of circular ring-shaped partition sheets, a first holding strip and a second holding strip;
FIG. 7 is a schematic view of the end of "step three";
fig. 8 and 9 are schematic diagrams illustrating that in the step four, the first holding strip and the second holding strip respectively move anticlockwise and clockwise along the contour path of the steam inner tube, so that the middle part of the rectangular heat-preservation cotton is gradually attached to the outer wall of the steam inner tube in an arc shape under the motion constraint of the first holding strip and the second holding strip, and inner-ring heat-preservation cotton is gradually formed;
FIG. 10 is a schematic view of the end of "step four";
FIG. 11 is a schematic view at the end of "step five";
FIG. 12 is a schematic view showing that in the "sixth step", left and right wings gradually form left and right semicircular arc-shaped heat preservation cotton;
FIG. 13 is a perspective view of FIG. 12;
FIG. 14 is a schematic view at the end of "step six".
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figures 1 to 14, the heat insulation structure of the steam heat insulation pipe comprises a steam inner pipe 11, wherein a heat insulation cotton layer is coated outside the steam inner pipe 11; the heat insulation cotton layer comprises cylindrical inner layer heat insulation cotton and outer layer heat insulation cotton; if the cotton layer of heat preservation has outer tube 9 with axle center cover outward as figure 1, the tip of outer tube 9 is fixed through the one end outer wall of a plurality of welding stent 2 and steam inner tube 11, and cotton cladding structure and the technology of heat preservation are mainly introduced to this scheme, specifically as follows:
as shown in figure 6, also comprises a heat insulation cotton framework 31 which is coaxial with the steam inner pipe 11, the inner layer heat insulation cotton and the outer layer heat insulation cotton are formed by bending a complete rectangular heat insulation cotton 1, after the rectangular heat insulation cotton 1 is bent/folded into the inner layer heat insulation cotton and the outer layer heat insulation cotton, the heat insulation cotton framework 31 is sandwiched between the inner layer heat insulation cotton and the outer layer heat insulation cotton, and divides the space between the inner layer heat insulation cotton and the outer layer heat insulation cotton into a plurality of independent heat insulation empty bins 13 as shown in fig. 3; the inner-layer heat-insulation cotton and the outer-layer heat-insulation cotton are formed by bending/bending a piece of complete rectangular heat-insulation cotton, the inner-layer heat-insulation cotton and the outer-layer heat-insulation cotton have inward contraction tendency due to a continuous structure formed by bending/bending in a subsequent specific structure, so that a compact coating effect is achieved, meanwhile, a plurality of independent cavities are formed between the inner-layer heat-insulation cotton and the outer-layer heat-insulation cotton, heat conduction between solids is effectively isolated, and a heat insulation effect of locking heat is achieved on the basis of compact coating of the heat-insulation cotton;
as shown in fig. 1, the inner layer heat insulation cotton comprises a layer of cylindrical inner ring heat insulation cotton 1.1 with an open ring at the lower end, wherein the outer part of the steam inner pipe 11 is tightly coated with the inner layer heat insulation cotton, and the anticlockwise end and the clockwise end of the inner ring heat insulation cotton 1.1 with the open ring are respectively and integrally bent downwards to form a first heat insulation cotton closed section 1.2 and a second heat insulation cotton closed section 1.3; the steam pipe also comprises a first holding strip 8c and a second holding strip 8d which are parallel to the axis of the steam inner pipe 11; the first holding strip 8c and the second holding strip 8d are clamped at two sides of the first heat-preservation cotton closed section 1.2 and the second heat-preservation cotton closed section 1.3 in parallel, so that the first heat-preservation cotton closed section 1.2 and the second heat-preservation cotton closed section 1.3 are tightly extruded, and the mutually extruded first heat-preservation cotton closed section 1.2 and the second heat-preservation cotton closed section 1.3 enable the open-loop inner ring heat-preservation cotton 1.1 to become a closed loop and have an inward contraction trend, so that the inner ring heat-preservation cotton 1.1 is tightly attached to the outer wall of the steam inner pipe 11;
as shown in fig. 5 and 6, the heat insulation cotton framework 31 comprises a plurality of annular division pieces 10 which are coaxially and equidistantly distributed, the lower ends of the annular division pieces 10 are provided with openings 20, the inner rings of the annular division pieces 10 are coaxially sleeved outside the inner ring heat insulation cotton 1.1, and the anticlockwise end and the clockwise end of each annular division piece 10 are respectively welded and connected with a first holding strip 8c and a second holding strip 8d;
the outer-layer heat insulation cotton consists of a left semicircular arc-shaped heat insulation cotton 1.4 and a right semicircular arc-shaped heat insulation cotton 1.5 which are coaxial; the inner walls of the left semicircular arc-shaped heat preservation cotton 1.4 and the right semicircular arc-shaped heat preservation cotton 1.5 are attached to the outer ring outline 10.1 of each circular ring-shaped partition piece 10, and an independent heat insulation empty bin 13 is formed between any two adjacent circular ring-shaped partition pieces 10, so that heat conduction between solids is effectively isolated, and a heat preservation effect of locking heat is further achieved;
the counterclockwise end of the left semi-circular arc-shaped heat preservation cotton 1.4 is connected with the lower end of the first heat preservation cotton closed section 1.2 into a whole, and the clockwise end of the right semi-circular arc-shaped heat preservation cotton 1.5 is connected with the lower end of the second heat preservation cotton closed section 1.3 into a whole;
the clockwise end of the left semicircular arc-shaped heat insulation cotton 1.4 and the counterclockwise end of the right semicircular arc-shaped heat insulation cotton 1.5 are integrally bent upwards into a third heat insulation cotton closed section 1.6 and a fourth heat insulation cotton closed section 1.4 respectively; the steam pipe also comprises a third holding strip 8a and a fourth holding strip 8b which are parallel to the axis of the steam inner pipe 11; the third holding strip 8a and the fourth holding strip 8b are clamped at two sides of a third heat-preservation cotton closed section 1.6 and a fourth heat-preservation cotton closed section 1.4 in parallel, so that the third heat-preservation cotton closed section 1.6 and the fourth heat-preservation cotton closed section 1.4 are tightly extruded, the third heat-preservation cotton closed section 1.6 and the fourth heat-preservation cotton closed section 1.4 which are mutually extruded and a first heat-preservation cotton closed section 1.2 and a second heat-preservation cotton closed section 1.3 which are mutually extruded enable a left semi-circular arc-shaped heat-preservation cotton 1.4 and a right semi-circular arc-shaped heat-preservation cotton 1.5 to be spliced into a closed-loop cylindrical structure and have an inward contraction trend, and further the heat-preservation cotton framework 31 is tightly held;
the left semicircular arc-shaped heat preservation cotton 1.4, the right semicircular arc-shaped heat preservation cotton 1.5, the first heat preservation cotton closed section 1.2, the second heat preservation cotton closed section 1.3, the inner ring heat preservation cotton 1.1, the third heat preservation cotton closed section 1.6 and the fourth heat preservation cotton closed section 1.4 are formed by bending/bending the rectangular heat preservation cotton 1.
As shown in fig. 2 and 4, bolt through holes 41 are formed in the third holding strip 8a and the fourth holding strip 8b in an array manner along the length direction, and the bolt through holes 41 in the third holding strip 8a and the bolt through holes 41 in the fourth holding strip 8b are in one-to-one coaxial correspondence; the heat insulation cotton sealing device further comprises a plurality of locking bolts 6, the tail ends of the studs of the locking bolts 6 are respectively provided with a pointed end 5 capable of penetrating through heat insulation cotton, each locking bolt 6 penetrates through the bolt penetrating holes 41 in the third holding strip 8a and the fourth holding strip 8b and penetrates through a third heat insulation cotton closing section 1.6 and a fourth heat insulation cotton closing section 1.4 between the third holding strip 8a and the fourth holding strip 8b; one end of the locking bolt 6 close to the pointed end 5 is locked through the nut 7, so that the third holding strip 8a and the fourth holding strip 8b tightly extrude the third heat-preservation cotton closed section 1.6 and the fourth heat-preservation cotton closed section 1.4.
Equipment: in the axial view of the steam inner pipe 11, the up-down direction is denoted as the Y direction, and the horizontal direction is denoted as the X direction;
the device also comprises a left heat-preservation cotton clamping device 3 and a right heat-preservation cotton clamping device 4, wherein the left heat-preservation cotton clamping device 3 and the right heat-preservation cotton clamping device 4 can clamp the left contour edge and the right contour edge of the rectangular heat-preservation cotton 1 respectively; the driving device can respectively drive the left heat-preservation cotton clamping device 3 and the right heat-preservation cotton clamping device 4 to do any X-Y direction displacement;
as shown in fig. 4, the clamping device further comprises a left clamping strip clamping device 43 and a right clamping strip clamping device 44, the driving device can respectively drive the left clamping strip clamping device 43 and the right clamping strip clamping device 44 to make any displacement in the X and Y directions, and the left clamping strip clamping device 43 and the right clamping strip clamping device 44 respectively clamp the first clamping strip 8c and the second clamping strip 8d; the first clip strip 8c and the second clip strip 8d are displaced synchronously with the left clip strip holding means 43 and the right clip strip holding means 44, respectively; after the first holding strip 8c and the second holding strip 8d are released by the left holding strip clamping device 43 and the right holding strip clamping device 44, the third holding strip 8a and the fourth holding strip 8b can be clamped respectively; since the driving device capable of XY displacement is of the prior structure, it is not described in detail.
The process comprises the following steps:
firstly, clamping and fixing a steam inner pipe 11 in a horizontal posture;
preparing a complete rectangular heat insulation cotton 1 in a horizontal posture, and respectively clamping the left and right outline edges of the rectangular heat insulation cotton 1 by a left heat insulation cotton clamping device 3 and a right heat insulation cotton clamping device 4 to keep the rectangular heat insulation cotton 1 in a horizontal state; the middle part of the rectangular heat-insulating cotton 1 is tangent to the top of the steam inner pipe 11 by controlling the displacement of the left heat-insulating cotton clamping device 3 and the right heat-insulating cotton clamping device 4;
step three, the left holding strip clamping device 43 and the right holding strip clamping device 44 respectively clamp the first holding strip 8c and the second holding strip 8d which are parallel to each other, and the first holding strip 8c and the second holding strip 8d are in contact with the upper surface of the middle part of the rectangular heat insulation cotton 1, as shown in fig. 7;
driving the left holding strip clamping device 43 and the right holding strip clamping device 44 to displace respectively by the driving device, and further driving the first holding strip 8c and the second holding strip 8d clamped by the left holding strip clamping device 43 and the right holding strip clamping device 44 to displace anticlockwise and clockwise along the outline path of the steam inner pipe 11 respectively, so that the middle part of the rectangular heat-insulating cotton 1 is in an arc shape under the motion constraint of the first holding strip 8c and the second holding strip 8d and is gradually attached to the outer wall of the steam inner pipe 11, and the inner-ring heat-insulating cotton 1.1 is gradually formed; the parts of the two sides of the heat insulation cotton 1 which are not bent/folded are marked as a left wing 1a and a right wing 1b, as shown in fig. 8 and 9;
at the same time; the left heat-preservation cotton clamping device 3 and the right heat-preservation cotton clamping device 4 are adaptively close to each other and descend, so that the left wing 1a and the right wing 1b are always kept in a loose horizontal state;
along with the first holding strip 8c and the second holding strip 8d, the first holding strip 8c and the second holding strip 8d respectively move anticlockwise and clockwise along the outline path of the steam inner pipe 11 until a complete inner ring heat insulation cotton 1.1 is formed, a first heat insulation cotton closed section 1.2 and a second heat insulation cotton closed section 1.3 which are formed by a counterclockwise needle end and a clockwise needle end of the inner ring heat insulation cotton 1.1 and are bent downwards are clamped between the first holding strip 8c and the second holding strip 8d, and at the moment, the first holding strip 8c and the second holding strip 8d are controlled to extrude the first heat insulation cotton closed section 1.2 and the second heat insulation cotton closed section 1.3 which are tightly attached to each other towards the directions which are close to each other, so that the open-loop inner ring heat insulation cotton 1.1 becomes a closed loop and has the tendency of inward contraction, and the inner ring heat insulation cotton 1.1 is tightly attached to the outer wall of the steam inner pipe 11 and the state is maintained; as shown in FIG. 10;
step five, a plurality of circular ring-shaped division pieces 10 with openings 20 at the lower ends are distributed at equal intervals and sleeved outside the formed inner ring heat insulation cotton 1.1, and then the anticlockwise end and the clockwise end of each circular ring-shaped division piece 10 are respectively welded and connected with a first holding strip 8c and a second holding strip 8d; the heat insulation cotton framework 31 formed by the first holding strip 8c, the second holding strip 8d and each annular dividing sheet 10 is integrally sleeved outside the formed inner ring heat insulation cotton 1.1 coaxially;
the left and right clip strip clamping devices 43, 44 release the first and second clip strips 8c, 8d, respectively; then controlling the left holding strip clamping device 43 and the right holding strip clamping device 44 to clamp the third holding strip 8a and the fourth holding strip 8b respectively, and enabling the third holding strip 8a and the fourth holding strip 8b to be in parallel contact with the lower side surface of the right end of the left wing 1a and the lower side surface of the left end of the right wing 1b respectively; as shown in FIG. 11;
sixthly, the driving device drives the left holding strip clamping device 43 and the right holding strip clamping device 44 to displace respectively, so as to drive the third holding strip 8a and the fourth holding strip 8b clamped by the left holding strip clamping device 43 and the right holding strip clamping device 44 to displace clockwise and anticlockwise respectively along the outline path of the heat-insulating cotton framework 31, and simultaneously the left wing 1a and the right wing 1b are released by the left heat-insulating cotton clamping device 3 and the right heat-insulating cotton clamping device 4 respectively, so that the left wing 1a and the right wing 1b gradually form an arc shape and gradually attach to the periphery of the heat-insulating cotton framework 31 under the constraint of the arc motion of the third holding strip 8a and the fourth holding strip 8b, and the left wing 1a and the right wing 1b gradually form left semicircular arc-shaped heat-insulating cotton 1.4 and right semicircular arc-shaped heat-insulating cotton 1.5; as in fig. 12 and 13;
until the complete left semicircular arc-shaped heat preservation cotton 1.4 and right semicircular arc-shaped heat preservation cotton 1.5 are formed, the left semicircular arc-shaped heat preservation cotton 1.4 is clamped between a third clamping strip 8a and a fourth clamping strip 8b along a time needle end and an upward bent third heat preservation cotton closed section 1.6 and a fourth heat preservation cotton closed section 1.7 formed by a right semicircular arc-shaped heat preservation cotton 1.5 counter-time needle end, and at the moment, the first clamping strip 8c and the second clamping strip 8d are controlled to extrude the third heat preservation cotton closed section 1.6 and the fourth heat preservation cotton closed section 1.7 which are tightly attached to each other towards the mutually approaching direction, so that the left semicircular arc-shaped heat preservation cotton 1.4 and the right semicircular arc-shaped heat preservation cotton 1.5 are combined into a closed-loop cylindrical structure and have the inward contraction trend, and the close holding of the heat preservation cotton framework 31 is further realized; at the moment, an independent heat insulation empty bin 13 is formed between any two adjacent circular ring-shaped partition sheets 10 of the heat insulation cotton framework 31; as shown in FIG. 14;
step seven, preparing a plurality of locking bolts 6 with pointed ends 5, enabling each locking bolt 6 to penetrate through bolt penetrating holes 41 in the third holding strip 8a and the fourth holding strip 8b, and penetrating a third heat-preservation cotton closed section 1.6 and a fourth heat-preservation cotton closed section 1.4 between the third holding strip 8a and the fourth holding strip 8b; then, one end of the locking bolt 6 close to the pointed end 5 is locked through the nut 7, so that the third holding strip 8a and the fourth holding strip 8b tightly extrude the third heat-preservation cotton closed section 1.6 and the fourth heat-preservation cotton closed section 1.4; the heat preservation cotton layer coated outside the steam inner pipe 11 is completely coated;
and step eight, coaxially sleeving the outer pipe 9 outside the heat insulation cotton layer, and fixing the end part of the outer pipe 9 and the outer wall of one end of the steam inner pipe 11 through a plurality of welding brackets 2.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. The heat insulation structure of the steam heat insulation pipe is characterized in that: comprises a steam inner pipe (11), wherein a heat-insulating cotton layer is coated outside the steam inner pipe (11); the heat insulation cotton layer comprises cylindrical inner-layer heat insulation cotton and outer-layer heat insulation cotton;
still include with the cotton skeleton of heat preservation (31) of axle center with steam inner tube (11), inlayer heat preservation cotton and outer heat preservation cotton are buckled/crooked by a complete rectangle heat preservation cotton (1) and are formed, and a rectangle heat preservation cotton (1) is crooked/is buckled into inlayer heat preservation cotton and outer heat preservation cotton back, and heat preservation cotton skeleton (31) package presss from both sides between inlayer heat preservation cotton and outer heat preservation cotton, heat preservation cotton skeleton becomes a plurality of independent thermal-insulated empty storehouses (13) with the space division between inlayer heat preservation cotton and the outer heat preservation cotton.
2. The insulating structure of a steam insulating pipe according to claim 1, characterized in that: the inner-layer heat-insulation cotton comprises a layer of cylindrical inner-ring heat-insulation cotton (1.1) with an open ring at the lower end, wherein the outer part of the steam inner pipe (11) is tightly coated with the inner-layer heat-insulation cotton, and the anticlockwise end and the clockwise end of the inner-ring heat-insulation cotton (1.1) with the open ring are respectively bent downwards to form a first heat-insulation cotton closed section (1.2) and a second heat-insulation cotton closed section (1.3); the steam pipe is characterized by also comprising a first holding strip (8 c) and a second holding strip (8 d) which are parallel to the axis of the steam inner pipe (11); first holding strip (8 c) and second holding strip (8 d) parallel clamp are in first cotton closed section of heat preservation (1.2) and the cotton closed section of second heat preservation (1.3) both sides, make closely the extrusion between first cotton closed section of heat preservation (1.2) and the cotton closed section of second heat preservation (1.3), and cotton closed section of first heat preservation (1.2) and the cotton closed section of second heat preservation (1.3) of mutual extrusion make the inner circle heat preservation of open-loop cotton (1.1) become the closed loop, and have the trend of contracting inwards.
3. The insulating structure of a steam insulating pipe according to claim 2, characterized in that: the heat-insulation cotton framework (31) comprises a plurality of annular dividing pieces (10) which are coaxially and equidistantly distributed, an opening (20) is formed in the lower end of each annular dividing piece (10), inner rings of the annular dividing pieces (10) are coaxially sleeved outside the heat-insulation cotton (1.1) of the inner rings, and the anticlockwise end and the clockwise end of each annular dividing piece (10) are respectively connected with the first clamping strip (8 c) and the second clamping strip (8 d) in a welding mode.
4. The insulating structure of a steam insulating pipe according to claim 3, characterized in that: the outer-layer heat insulation cotton consists of a left semicircular arc-shaped heat insulation cotton (1.4) and a right semicircular arc-shaped heat insulation cotton (1.5) which are coaxial; the inner walls of the left semicircular arc-shaped heat preservation cotton (1.4) and the right semicircular arc-shaped heat preservation cotton (1.5) are attached to the outer ring outline (10.1) of each circular ring-shaped division piece (10), and an independent heat insulation empty bin (13) is formed between any two adjacent circular ring-shaped division pieces (10);
the counterclockwise end of the left semicircular arc-shaped heat insulation cotton (1.4) is connected with the lower end of the first heat insulation cotton closed section (1.2) into a whole, and the clockwise end of the right semicircular arc-shaped heat insulation cotton (1.5) is connected with the lower end of the second heat insulation cotton closed section (1.3) into a whole;
the clockwise needle end of the left semicircular arc-shaped heat insulation cotton (1.4) and the counterclockwise needle end of the right semicircular arc-shaped heat insulation cotton (1.5) are integrally bent upwards to form a third heat insulation cotton closed section (1.6) and a fourth heat insulation cotton closed section (1.4) respectively;
the steam pipe also comprises a third holding strip (8 a) and a fourth holding strip (8 b) which are parallel to the axis of the steam inner pipe (11); the third holding strip (8 a) and the fourth holding strip (8 b) are parallelly clamped at two sides of a third heat-preservation cotton closed section (1.6) and a fourth heat-preservation cotton closed section (1.4), so that the third heat-preservation cotton closed section (1.6) and the fourth heat-preservation cotton closed section (1.4) are tightly extruded, and the third heat-preservation cotton closed section (1.6) and the fourth heat-preservation cotton closed section (1.4) which are extruded mutually, as well as the first heat-preservation cotton closed section (1.2) and the second heat-preservation cotton closed section (1.3) which are extruded mutually enable the left half-circular-arc-shaped heat-preservation cotton (1.4) and the right half-circular-arc-shaped heat-preservation cotton (1.5) to be spliced into a closed-loop cylindrical structure and have an inward shrinkage tendency.
5. The insulating structure of a steam insulating pipe according to claim 4, characterized in that: the heat preservation cotton comprises left semicircular arc-shaped heat preservation cotton (1.4), right semicircular arc-shaped heat preservation cotton (1.5), a first heat preservation cotton closed section (1.2), a second heat preservation cotton closed section (1.3), inner ring heat preservation cotton (1.1), a third heat preservation cotton closed section (1.6) and a fourth heat preservation cotton closed section (1.4), wherein the rectangular heat preservation cotton (1) is bent/bent.
6. The heat insulation cotton coating process of the heat insulation structure of the steam heat insulation pipe is characterized in that:
firstly, clamping and fixing a steam inner pipe (11) in a horizontal posture;
step two, enabling the middle part of the horizontal rectangular heat insulation cotton (1) to be tangent to the top of the steam inner pipe (11);
step three, enabling the first holding strip (8 c) and the second holding strip (8 d) to be in contact with the upper surface of the middle part of the rectangular heat-preservation cotton (1), as shown in the figure;
fourthly, the first holding strip (8 c) and the second holding strip (8 d) respectively move anticlockwise and clockwise along the outline path of the steam inner pipe (11), so that the middle part of the rectangular heat-insulation cotton (1) is in an arc shape and gradually attached to the outer wall of the steam inner pipe (11) under the motion constraint of the first holding strip (8 c) and the second holding strip (8 d), and the inner-ring heat-insulation cotton (1.1) is gradually formed; the parts of the two sides of the heat insulation cotton (1) which are not bent/bent are marked as a left wing (1 a) and a right wing (1 b);
when a complete inner ring heat insulation cotton (1.1) is formed, a first heat insulation cotton closed section (1.2) and a second heat insulation cotton closed section (1.3) which are formed by a counterclockwise end and a clockwise end of the inner ring heat insulation cotton (1.1) and are bent downwards are clamped between a first clamping strip (8 c) and a second clamping strip (8 d);
fifthly, a heat insulation cotton framework (31) formed by the first holding strip (8 c), the second holding strip (8 d) and each annular partition piece (10) is integrally sleeved outside the formed inner ring heat insulation cotton (1.1) coaxially;
the third holding strip (8 a) and the fourth holding strip (8 b) are respectively in parallel contact with the lower side surface of the right end of the left wing (1 a) and the lower side surface of the left end of the right wing (1 b);
sixthly, the third holding strip (8 a) and the fourth holding strip (8 b) respectively displace clockwise and anticlockwise along the outline path of the heat-insulation cotton framework (31), the left wing (1 a) and the right wing (1 b) gradually form an arc shape under the constraint of the arc motion of the third holding strip (8 a) and the fourth holding strip (8 b) and gradually attach to the periphery of the heat-insulation cotton framework (31), and the left wing (1 a) and the right wing (1 b) gradually form left semi-arc-shaped heat-insulation cotton (1.4) and right semi-arc-shaped heat-insulation cotton (1.5);
when the complete left semi-circular arc-shaped heat preservation cotton (1.4) and the right semi-circular arc-shaped heat preservation cotton (1.5) are formed, an upward bent third heat preservation cotton closed section (1.6) and a fourth heat preservation cotton closed section (1.7) formed by the clockwise end of the left semi-circular arc-shaped heat preservation cotton (1.4) and the counterclockwise end of the right semi-circular arc-shaped heat preservation cotton (1.5) are clamped between a third clamping strip (8 a) and a fourth clamping strip (8 b).
7. The device required by the insulation cotton coating process of the insulation structure of the steam insulation pipe in claim 6 is characterized in that: the device comprises a left heat-preservation cotton clamping device (3) and a right heat-preservation cotton clamping device (4), wherein the left heat-preservation cotton clamping device (3) and the right heat-preservation cotton clamping device (4) can clamp the left contour edge and the right contour edge of rectangular heat-preservation cotton (1) respectively; the driving device can respectively drive the left heat-preservation cotton clamping device (3) and the right heat-preservation cotton clamping device (4) to move in any X-Y direction.
8. The device required by the insulation cotton coating process of the insulation structure of the steam insulation pipe according to claim 7, is characterized in that: the left clamping strip clamping device (43) and the right clamping strip clamping device (44) can be respectively driven by the driving device to do any X-Y direction displacement, and the first clamping strip (8 c) and the second clamping strip (8 d) are respectively clamped by the left clamping strip clamping device (43) and the right clamping strip clamping device (44); the first clamping strip (8 c) and the second clamping strip (8 d) are synchronously displaced along with the left clamping strip clamping device (43) and the right clamping strip clamping device (44) respectively; after the first clamping strip (8 c) and the second clamping strip (8 d) are released by the left clamping strip clamping device (43) and the right clamping strip clamping device (44), the third clamping strip (8 a) and the fourth clamping strip (8 b) can be clamped respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211190936.6A CN115574196B (en) | 2022-09-28 | 2022-09-28 | Heat preservation structure and heat preservation coating process of steam heat preservation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211190936.6A CN115574196B (en) | 2022-09-28 | 2022-09-28 | Heat preservation structure and heat preservation coating process of steam heat preservation pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115574196A true CN115574196A (en) | 2023-01-06 |
| CN115574196B CN115574196B (en) | 2023-10-17 |
Family
ID=84583942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211190936.6A Active CN115574196B (en) | 2022-09-28 | 2022-09-28 | Heat preservation structure and heat preservation coating process of steam heat preservation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115574196B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB390380A (en) * | 1932-07-18 | 1933-04-06 | A V Holm Aktiebolag | Method of manufacturing insulating sleeves |
| EP0175943A1 (en) * | 1984-08-27 | 1986-04-02 | Kurt Fischer | Sheath for the thermal insulation of a pipe conveying a warm or cold fluid |
| KR100915630B1 (en) * | 2008-09-30 | 2009-09-04 | 김국수 | Insulation cover for piping and method for constructing the same |
| JP3180132U (en) * | 2012-09-21 | 2012-12-06 | 千代田工業株式会社 | Vacuum insulated water pipe |
| CN109723937A (en) * | 2019-01-31 | 2019-05-07 | 上海科华热力管道有限公司 | The prefabricated aerial composite vapor insulating tube of one kind and its manufacturing method |
| CN215111343U (en) * | 2021-06-28 | 2021-12-10 | 泰州金泰环保热电有限公司 | Reduce heat loss's steam conduit insulation construction |
| CN216813442U (en) * | 2022-01-19 | 2022-06-24 | 邓州市华诚管业有限公司 | Engineering anticorrosion heat-insulation pipe |
-
2022
- 2022-09-28 CN CN202211190936.6A patent/CN115574196B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB390380A (en) * | 1932-07-18 | 1933-04-06 | A V Holm Aktiebolag | Method of manufacturing insulating sleeves |
| EP0175943A1 (en) * | 1984-08-27 | 1986-04-02 | Kurt Fischer | Sheath for the thermal insulation of a pipe conveying a warm or cold fluid |
| KR100915630B1 (en) * | 2008-09-30 | 2009-09-04 | 김국수 | Insulation cover for piping and method for constructing the same |
| JP3180132U (en) * | 2012-09-21 | 2012-12-06 | 千代田工業株式会社 | Vacuum insulated water pipe |
| CN109723937A (en) * | 2019-01-31 | 2019-05-07 | 上海科华热力管道有限公司 | The prefabricated aerial composite vapor insulating tube of one kind and its manufacturing method |
| CN215111343U (en) * | 2021-06-28 | 2021-12-10 | 泰州金泰环保热电有限公司 | Reduce heat loss's steam conduit insulation construction |
| CN216813442U (en) * | 2022-01-19 | 2022-06-24 | 邓州市华诚管业有限公司 | Engineering anticorrosion heat-insulation pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115574196B (en) | 2023-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI87486B (en) | CYLINDERFORMAD IHAOLIG KROPP AV SKRUVLINJEFORMIGT LINDAD PLASTPROFIL. | |
| RU2016140472A (en) | VESSELS OPERATING UNDER PRESSURE AND METHODS FOR THEIR MANUFACTURE USING ADDITIVE TECHNOLOGY | |
| US20070235100A1 (en) | Double walled, self-insulating, lightweight duct | |
| KR20050005455A (en) | Composite strip windable to form a helical pipe and method thereof | |
| JPH0464740B1 (en) | ||
| CN115574196A (en) | Heat insulation structure and heat insulation cladding process of steam heat insulation pipe | |
| JP2010500522A5 (en) | ||
| CN107283849A (en) | A kind of Welding mechanism of aerated product and aerated product structure with it and preparation method thereof | |
| US20120273174A1 (en) | Thermal Seal and Methods Therefor | |
| DE60211647T2 (en) | Container with collapsible bag | |
| EP1344971B1 (en) | Conduit for the transport of cryogenic fluids | |
| FI87261B (en) | FOERFARANDE FOER FRAMSTAELLNING AV ETT SAMMANSATT ROER. | |
| JP2010510917A (en) | Multi-layer tube or conduit and method for manufacturing the same | |
| US3747646A (en) | Insulation of gas feed tubes | |
| CA2601216A1 (en) | Low profile, durable, reinforced eptfe composite graft | |
| EP2409066A2 (en) | Composite flexible pipe and method of manufacture | |
| WO2011050800A2 (en) | Tensile spacer arrangement, method for the production thereof, and use thereof | |
| JP2007032631A (en) | Blockage structure of through hole | |
| EP2026919B1 (en) | Tubular members and methods of forming same | |
| CN1441719A (en) | Joined profile sections and apparatus, method and material for joining profile sections | |
| EP3826823B1 (en) | Production method for a semi-rigid conduit for conveying a gas | |
| WO2011050801A2 (en) | Spacer arrangement for creating an insulating space, and tube/wall system | |
| CN215928674U (en) | Closely woven steel wire mesh reinforced thermoplastic plastic composite pipe | |
| EP1457729A1 (en) | Spacer for an elongate substrate | |
| CN2612856Y (en) | A reinforced plating steel-plastic compound tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |